6. China: 60 sex workers per 10,000 people
According to some of the well known researchers in China, there are about 10 million active prostitutes in China. In other words, these prostitutes actually contribute as much as five percent to the country’s annual GDP (although the earnings are not taxed, it still goes back into the economy through consumption).
5. Nigeria: 63 sex workers per 10,000 people
A sex tourism market for divorced older western women is on the rise in Nigeria.